Hot-air mixer



J. H. INGRAHAM.

HOT MR MIXER. APPLICATION mgr) JAN-21.1919.

1,333, 1 1 Patented Mar. 9,1920.

7, 2 SHEETS-SHEET I.

Jwwtod m Mam/MM f. H! iNGRA'iAM.

HOT AIR maxsn.

APPLICATION FILED IAN. Zh 1919.

Patented Mala-9,1920.

2 SHEETS+SHEET Z.

Uurrsn srairus rars'fr o JEEQME H. INGRAHAIVI, OF KNOX CITY, TEXAS, ASSIGNOR 0T! ONE-HALF IQ C;

ion.

scams, or KNOX crrr, TEXAS.

RUT -AIR MIXER.

Specification of Letters Patent.

. Patented Mar. 9, 1920.

Application filed January 21, 1919. Serial No. 272,389

lowing is a specification, reference being had therein to theacoompanying drawing.

This invention relates to-a hot air mixer, that is used in connection with the engine of motor vehicles.

The object of my invention is the production of an efi'icient and novel device whereby air is readily heated and delivered to the manifold of a gas engine at the will of the operator.

With this and other objects in view my invention consists of certain other constructions and arrangements of parts as will be more fully described hereinafter and set forth in the claims.

In. the drawings:

Figure 1 is a view in side elevation of the device constructed in accordance with my invention. v

Flg. 2 1s a top plan view of the device shown in Fig". 1.

Fig. 3 is a longitudinal sectional view of the hot air chamber or cylinder.

Fig. t is an enlarged deta l view of the pedal device of my inventiom Fig. 5 is a vertical sectional view taken 0 line 55, 1, looking in the direction of the arrows.

Referring to the drawings by numerals, 1 designates the motor and 2 the manifold thereof. The exhaust pipe 3 is connected to the motor in the usual. manner, and upon the exhaust pipe 3 is mounted a pair of clamps 4. Each clamp l is provided with an upper and lower cylindrical portion; the lower cylindrical portion of the clamp surrounding the exhaust pipe 3, and, the upper cylindrical portion of the clamp surrounds the hot air mixing chamber or cylinder 5, more clearly seen upon referring to Fig. 5; each clamp is bent inwardly at 6, at its middle, holdm the hot air chamber 5 slightly above the ex aust pipe 3. It will be obvious by reason of the close positioning of the cylinder 5 to the exhaust pipe 3 that the cylinder 5 Wlll be heatedwlien the motor is in operation.

An intake valve 7 is carried by the cylinder '5, near its inner end, and the valve member therein is, through its stem 8, rofated, by a pedal device hereinafter described, for allowing entrance of air into the cylinder 5, by reason or a vacuum suction action through feed pipe 9, coupler l0, and the manifold.

lhe i'eed pipe 9 is dctachably secured to the outer end of the cylinder 5 by means of a stufling box 11 carried b the cap 12 of the outer end of the cylint er 5; the inner end of cylinder 5 is closed by a threaded cap '13. By removing cap 13 and intake valve 7, as well as cap 12 together with the stufiing box 11, the cylinder 5 can be re'- moved from the upper rounded or loop portion of the clamps or bracket members 4. i

My pedal device comprises a bracket 14,

fixedly secured at 15 to the bottom 16 of the automobile. This bracket 14 is provided with a lug 17, to which lug is fastened spring 18. Pivoted at 19, upon the lower end of bracket 14;, is bell crank lever 20; said lever 20 is provided with an upwardly extending lug 21, and gaging the lug 21 is threaded bolt 22, which bolt 22 is carried by bracket 14: above the pivot 19. A locking nut 28 is mounted upon bolt 22 for locking the bolt in an adjusted position upon the bracket wherebythe normal position of bell crank lever 20 can be adjusted to a nicety, so that the valve member of intake valve 7 will. be retained in a position to cause its passages to register correctly; no claim'is made to the specific structure of valve 7 A rod 24 is pivotally connected at 25 to the arm 8 of the rotary valve member in the valve 7, and the opposite end of rod 24 is pivotally cennectedat 26 to the lower end of lever 20. 11%. vertical movable plunger rod 27 is carried bythe bottom 16 of the-machine, and said plunger rod 2"? isprovided with a pin 28 working in an elongated aperture 29 formed near the outer end of lever 20. This pin 28 and aperture 29 allows suf fioient play of the lever 20 and rod 27 to permit or the downward movement necessary to impart a swinging motion to rod or link 2t and arm 8 of valve 7 for open ing or closing the valve menibe of valve '2' a lug as desired. On. lever so is formed 30 nearaperture 29, and the lower end of spring'lil 1S fastened to log 30,. for nor- I really exerting an upward pull. on. the other end of the lever to hold the valve member in valve 7 in a closed position.

On rodv 27, near its upper end, is formed a lug that is provided with an inclined beveled face over which rides the inner end of the latch pedal 3.2, this latch pedal 32 is carried by a lu u this lug is fastened to the lioor 16 of the machine A spring 3% normally exerts an outward pressure on the latch pedal, holding the pedal over the lug 31 when the plunger rod is pressed downwardly, causing the lug 31 to rice un der the inner end of the latch pedal 32, showp in dotted lines, Fig. 4, when the latch pedal is pressed downwardly at its outer end, the plunger rod 27 will be released, and by reason of the strain exerted on the outer end of lever 20, and plunger rod 27, plunger rod 27 will move upwardly, and through the lever 20 and rod or link 24 the rotary valve menrbiir in the valve 7 will be closer.

From the foregoing it will. be appreciated that when the operator of the machine desires to ca'use hot air to be passed into the manifold of the motor, for facilitating the running of said motor, all he has to do is to press down on the plunger rod 27 thereby opening the intake valve 7 and allowing air to enter the hot air cylinder 5 whence, the suction or a vacuum action caused by the motor running, will cause the heated air to be drawn into the manifold and'thcnce into the cylinders of the motor.

What I claim is 1. In a device of the class described, the combination with a motor provided with a manifold and an exhaust pipe, of a hot air cylinder positioned above said exhaust pipe, means spacing said hot air cylinder from said exhaust pipe, means detachably connecting one end of said cylinder to said manifold, an intake valve carried by said cylinden, said intake valve provided with a rotary member having an arm, a rod connected to said arm, a pedal device con1- In a device of the class described, the

combination with an exhaust pipe and a manifold, means provided with an intake valve positioned contiguousto said exhaust pipe and communicating with said inanifold, of a pedal device for actuating said intake valve comprising a bracket provided with an apertured lower end and with an apertured lug extending therefrom near its upper end, a bell crank lever pivotally mounted upon the lower end of the.

bracket, a rod pivotally connecting said lever to sa1d intake valve, said lever provlded near its pivot wlth an upwardly extending lug, a threaded bolt carried by said bracket and engaging said last-mentioned lug, a lock nut on said bolt and engaging the bracket, said lever provided near one end with an elongated aperture and with a second lug, a spring attached to the lug of the bracket and to the second-mentioned lug of the lever, a vertical movable plunger rod provided near its upper end with a lug having an under beveled face, and said rod provided near its lower end with a pin, said pin working in the elongated aperture ofsaid lever, a latch pedal adapted to engage the beveled face of the lug on the rod and ride over the same and lock the rod in an adjusted. position, and a spring exerting an upward pressure upon the latch near its outer end.

In testimony whereof I hereunto aflix my signature.

JEROME H. IN GRAHAM. 

